JPS6049517B2 - Ball stick for pachinko machines - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ball hitting rod for a pachinko machine.

Hitting the pachinko ball toward the board surface is accomplished by hitting the pachinko ball with a coiled ball ball attached to a protruding attachment portion at the tip of the ball rod.

This ball hitting ball is repaired or replaced when it becomes damaged or aged, but in the past, the proximal winding part of the coiled ball hitting ball was fitted around the entire circumference into an annular groove formed on the outer periphery of the base end of the mounting part. Since it was attached to the mounting part so that it would fit together, it could not be easily removed.

An object of the present invention is to provide a ball hitting rod from which the ball hitting element can be easily removed by rotating the ball hitting element. An embodiment embodying the present invention is shown in FIGS. 1 to 11 below.
The diagram will be explained.

First, the configuration of the ball batting rod and its related mechanism of this embodiment will be explained. 1 is the ball batting rod body provided in the ball hitting mechanism of the pachinko machine, as shown in FIG. It is composed of a core body 1a made of a metal wire, and a surrounding part 1b made of synthetic resin that surrounds the concentric body 1a except for the tip thereof. Reference numeral 3 denotes a rounded conical attachment part formed on the tip protrusion of the core body a, and as shown in FIGS. A pair of engagement recesses 5 are formed to correspond to each other.

Furthermore, the engagement recess 5 is continuous with the outer periphery of the base end without any step. Reference numeral 4 denotes a coil-shaped ball hitting ball fitted into the mounting portion 3, and the base end thereof is slightly bent inward to form a straight line to form an engaging portion 4a, and the engaging portion 4a is formed into one of the above-mentioned types. It engages with one of the engagement recesses 5 in a detachable manner. Therefore, the engaging portion 4a of the ball hitting element 4 is such that if the entire ball hitting element 4 is slightly rotated, the engaging recess 5 formed on the outer periphery of the base end of the mounting portion 3 will move relative to the outer periphery of the base end as described above. Since it is continuous without any step, it can be easily separated from the engagement recess 5.
Reference numeral 6 denotes a rectangular shaft hole transparently provided at the base end of the ball batting rod body 1, which is rotated by the rotation of a motor (not shown) that is started when an operating knob (not shown) on the outside of the pachinko machine is operated. It is fixed with a nut 8 to a drive shaft 7 which rotates the ball batting rod body 1 at a ball hitting position to a standby position (FIG. 2 position) at regular intervals.

Further, the base end of the core body 1a is bent into a U-shape,
It forms part of the inner circumference of the shaft hole 6. Reference numerals 9 and 10 indicate first and second mounting holes respectively provided through the intermediate portion of the ball batting rod body 1; reference numeral 11 indicates a screw 12 inserted into the first mounting hole 9; It is an operating rod to which a proximal annular portion 11a is attached with a shaft 14, and a coil spring 15 is wound around the tip bent portion 11b. Activate it to send pachinko balls to the ball launch rail (not shown)! It acts on

Reference numeral 16 denotes a hanging rod having a proximal bent portion 16a hooked to the second mounting hole 10, and a ball hitting rod main body 1 attached to the tip bent portion 16b.
One end of a spring 17 that biases the ball in the direction of hitting the ball is hooked.

Therefore, when the starting knob on the outside of the pachinko machine is rotated, the ball hitting rod body 1 is rotated in the standby direction and then vigorously rotated in the ball hitting direction by the bias of the spring 17.

Along with this operation, the ball sending member supplies the pachinko balls one by one to the firing rail, so that the ball hitting operation can be performed continuously. Next, a method of manufacturing the batting rod constructed as described above will be explained.

First, as shown in FIG.
A recess 24 is formed in a female die 1b'' for molding, and a recess 24 into which the tip protrusion of the core body 1a fits is formed at the tip of the female die 1b'', and one pair constitutes one die. Male form 1b of
The core body 1a, which has been bent in advance, is placed inside, and its tip is fitted into the recess 24, and the proximal curved part is fitted into the male shape 6'' of the shaft hole 6.Next, both molds 25 After aligning the molds, a molten synthetic resin is injected into the female mold 1b'', and when it hardens, it is taken out from the mold 25 and the unnecessary gate portion is cut off.

Next, the protruding end of the core body 1a is processed to make its tip into a rounded conical shape, and a pair of engagement recesses 5 are carved on both sides of the base end without creating a step on the outer periphery of the base end. Mounting part 3
The coil-shaped ball hitting element 4 is inserted into the mounting part 3 while rotating, and as shown in FIGS. The circumference is releasably engaged with the engagement recess 5.

When rotating the ball hitting element 4, the ball hitting element 4 can be easily fitted into the mounting portion 3 by rotating the ball hitting element 4 back and forth or in a direction opposite to the winding direction of the coil. And finally, first,
An operating rod 11 and a hanging rod 1 are installed in the second mounting holes 9 and 10, respectively.
6 and then attach the shaft hole 6 to the drive shaft 7.

Therefore, when repairing or replacing the ball hitting element 4 due to aging or damage, the base end engaging portion 4a of the ball hitting element 4 is disengaged from the engaging recess 5, as shown in FIGS. 9 and 10c. By turning the ball in this manner, the ball hitting element 4 can be easily removed from the mounting portion 3.

As described above, the ball batting rod for a pachinko machine according to the first invention of the present application has a conical attachment portion 3 protruding from the tip protrusion of the ball rod main body 1,
An engagement recess 5 is formed in a part of the outer periphery of the base end of the attachment portion 3, and a coiled ball hitting element 4 is fitted into the attachment part 3, and the coiled ball hitting element 4 is fitted with its base. An engaging portion 4a is formed by bending the end inward, and the engaging portion 4a at the base end of the ball hitting ball 4 is engaged with the engaging recess 5 at the base end of the mounting portion 3. From this, it exhibits the following effects.

First, by slightly rotating the attached ball hitting element 4 in the circumferential direction with respect to the mounting part 3, the engagement part 4a at the base end of the ball hitting element 4 is rotationally displaced to the outside of the engagement recess 5 at the base end of the mounting part 3. At that time, the engaging portion 4a of the ball hitting element 4 comes into contact with the outer periphery of the attachment part 3, and is pushed outward as shown in FIG. Since the winding diameter is expanded, the ball hitting element 4 can be easily removed, so the ball hitting element 4 can be easily removed.

That is, since a part of the base end of the ball hitting element 4 is engaged with and attached to a part of the outer periphery of the base end of the attachment part 3, by rotating the attached ball hitting element 4, the ball hitting element 4 and the attachment part 3 can be connected to each other. Since the engaging portion 4a of the ball hitting head 4 expands the winding diameter of the proximal winding portion of the ball hitting head 4, the base end of the coiled ball hitting head is disengaged from the annular groove at the base end of the attachment portion. The ball hitting element 4 can be easily removed compared to the conventional method in which the entire circumference of the winding part is fitted. Further, by keeping the position of the ball hitting child 4 in the circumferential direction with respect to the mounting portion 3 constant through the engagement between the engaging portion 4a of the ball hitting child 4 and the engaging recess 5 of the mounting portion 3, the position of the ball hitting child 4 in the circumferential direction is kept constant. Positioning in the longitudinal and circumferential directions is simple, and even if the ball hitting element 4 receives some force in the circumferential direction when hitting a ball, the ball hitting element 4 can be stably held without easily being displaced in the circumferential direction. Moreover, the batting rod for a pachinko machine according to the second invention of the present application is the batting rod main body 1 of the first invention.
Since the ball is composed of a metallic core 1a and a synthetic resin surrounding portion 1b surrounding the concentric body 1a, it is possible to provide a batting rod that is lighter in weight and has excellent cushioning properties compared to the first invention. Add and demonstrate the effects you can obtain.

Note that the present invention is not limited to the embodiments described above, and may be embodied in the following embodiments.

(a) As shown in Fig. 12, a sheet metal is punched out as the core 1a, and a plate-shaped one is used with both mounting holes 9, 10 and the shaft hole 6 punched out, and its outer periphery is made of synthetic resin 1b.
to be surrounded by (b) As shown in Figure 13A and b,
The ball-striking rod body 1 is die-cast from aluminum alloy or the like, and a mounting part 3 in which an engaging recess 5 is formed is integrally provided at the tip of the ball-striking rod body 1.

(c) As shown in FIGS. 14a to 14d, the number and shape of the engaging recesses 5 can be arbitrarily changed.

Figure 14a shows one engagement recess 5 formed in one place, Figure 14b shows one in three places, and Figures C and d each have one engagement recess 5 that gradually deepens toward the center. , which are formed in two locations. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing the ball-striking mechanism in a ball-striking state, FIG. 2 is a sectional view of the ball-striking mechanism in a standby state, FIG. 3 is a perspective view of the ball-striking rod, and FIG. 4 5 is a cross-sectional view of the batting rod main body constructed by surrounding the core shown in FIG. 4 with synthetic resin, FIG. 6 is an exploded perspective view of the lower part of the batting rod, and FIG. 7 is a perspective view of the core. is an exploded front view of the ball hitting ball and the attachment part, FIG. 8 is a front view showing the ball hitting ball attached to the mounting part so that the inner periphery of the base end engages with the engagement recess, and FIG. 9 is a front view of the ball hitting ball. Fig. 10a is a sectional view of the mounting part, Fig. 10b is a front view showing the state in which the inner periphery of the proximal end is removed from the engagement recess by turning.
is the state shown in Figure 8. A sectional view showing the mounting part, figure c is the 9th
Figure 11 is an exploded perspective view of the mold, Figure 12 is a cross-sectional view of the ball batting rod body using a punched core, and Figure 13a is a die-cast batting rod. FIG. 14B is a front view of the ball rod main body, FIG.

The ball hitting rod body 1, the mounting portion 3, the ball hitting element 4, the engaging portion 4a1 and the engaging recess 5.

Claims (1)

[Scope of Claims] 1. A conical attachment portion 3 is provided on the protruding tip portion of the ball hitting rod body 1, and an engagement recess 5 is formed on a part of the outer periphery of the proximal end of the butt attachment portion 3. A coiled ball hitting element 4 is fitted into the attachment part 3, and the coiled ball hitting element 4 has an engaging part 4a formed by bending its base end inward, and the attachment part 3 A ball hitting rod for a pachinko machine, characterized in that an engaging portion 4a at the base end of the ball hitting element 4 is engaged with an engaging recess 5 at the end. 2. The ball hitting rod for a pachinko machine according to claim 1, wherein the ball hitting rod main body 1 is die-cast so that the mounting portion 3 is integrally formed. 3. A ball batting rod for a pachinko machine according to claim 1, wherein there are a plurality of engagement recesses 5 on the outer periphery of the base end of the mounting portion 3. 4. A batting rod for a pachinko machine according to claim 1, in which the engagement recess 5 is gradually deepened toward the center. 5. A ball hitting rod main body 1 is formed of a metallic core 1a and a synthetic resin surrounding part 1b surrounding the concentric body 1a, and the core 1a has a conical shape protruding from the surrounding part 1b. A mounting part 3 is formed, an engagement recess 5 is formed in a part of the outer periphery of the base end of the mounting part 3, and a coil-shaped ball hitting element 4 is formed in the mounting part 3.
The coiled ball hitting element 4 has an engaging portion 4a formed by bending its base end inward, and the ball hitting element 4 is fitted into the engaging recess 5 at the base end of the mounting portion 3. A ball hitting rod for a pachinko machine, characterized in that four engaging portions 4a at the base end are engaged. 6 Claim No. 5 in which the core body 1a is a metal wire rod
A batting rod for pachinko machines as described in . 7 Claim 5 in which the core body 1a is a metal plate material
A batting rod for pachinko machines as described in .